| 摘要 |
A belt moving unit includes an endless belt member and plural support rolls supporting the belt member movably and rotating, wherein the support rolls include one or more follower rolls rotating to follow the movement of the belt member and at least one of the follower rolls is used as an inertial roll to which inertia is applied, wherein the inertial roll includes a rotation shaft, a rotational inertial member rotating with the rotation shaft and applying inertia, and a roll body disposed along a peripheral surface of the rotation shaft and including plural roll-divided members, and wherein the plural roll-divided members include a fixed divided member fixed to the rotation shaft and rotating along with the rotation shaft to follow the movement of the belt member and a rotating divided member rotating independently of the rotation of the rotation shaft. |
